Vasiliy Ulyanov

Updated the PR. The certificates are now fetched in `virt-launcher` context. Node labeller is not used anymore. The modification is added as a separate commit.

Rebased the PR. Resolved conflicts with the generated files. No functional changes.

/retest

> Minor comments after another look but it looks great /lgtm Thanks. All addressed.

> Thanks a lot @vasiliy-ul! Great work! A few minor comments below Thanks for the review. Comments addressed.

/retest

/retest

/test pull-kubevirt-e2e-k8s-1.23-sig-storage-nonroot

/test pull-kubevirt-e2e-k8s-1.23-sig-storage-nonroot

Rebased and fixed the conflicts. No functional changes.